Blower for boilers.



H. A. HIGGINS.

BLOWER FOR BOILERS.

APPLIOATION FILED MAR.23,1911

1,016,993, Patented Feb. 13,1912.

2 SHEETS-SHEET 1.

COLUMBIA PLANOURAPH co., WASHINGTON, n. c.

H. A. HIGGINS.

BLOWER FOR BOILERS.

APPLICATION FILED MAR..23,1911

1,016,993, Patented Feb. 13,1912.

2 SHEETSSHEET 2.

WWI two 1 Momma/3 COLUMBIA PLANOGRAPH ccv.v WASHINGTON. D. C

HARRY A. HIGGINS, 0F DETROIT, MICHIGAN, ASSIGNOR T0 DIAMOND POWER SPECIALTY (30., 0F DETROIT, MICHIGAN.

BLOWER FOB, BOILERS.

Specification of Letters Patent.

Patented Feb. 13, 1912.

Application filed March 23, 1911. Serial No. 616,358.

To all whom it may concern:

Be it known that I, HARRY A. I-Ireoms, a citizen of the United States of America, residing at Detroit, in the county of \Vayne and State of Michigan, have invented certain new and useful Improvements in Blowers for Boilers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to boiler-flue cleaners or blowers, and especially to that class thereof which may be applied to the setting of what is generally known as the vertical type and it has for its object the provision of a pair of such devices which may be brought into operation on opposite sides of the boiler, but obtain their steam-supply from the same stand pipe.

The invention has, furthermore, for its object the improved articulation and organization of the steam-pipes or tubes, whereby the latter may be projected into the setting, or removed therefrom when not in use, and thus permit the cleaner-openings to be closed against loss of draft.

Further objects of the invention will hereinafter appear and be particularly defined in the claims.

The invention has been clearly illustrated in the accompanying drawings, in which similar characters denote similar parts, and in which- Figure 1 is a vertical central section of a boiler of the vertical water tube type; Fig. 2 represents a horizontal section thereof, on line 2, 2 of Fig. 1; Fig. 3 is a perspective diagram of the steam-supply pipe, its articulated branches, and the jet tubes; Fig. 4 is an end view of one of the blowerheads, and Fig. 5 represents a section thereof, on lines 5, 5 of Fig. 1.

Briefly stated, the present invention comprises one or more steam-carrying or blower-tubes disposed at substantially diametrically opposite sides of the boiler, and each having a blower or distributing head which has jet openings through which steam may be blown along the vertical boiler tubes, and which may be swung horizontally to reach several of these tubes. Usually there are two or more of these jetfub es side by side in a horizontal plane, and

in the present instance means are provided for swinging each set of et-tubes simultaneously. The present organization is also such that the set of jet tubes may be entered into, or withdrawn out of the boiler setting at once, each set being furthermore controlled, as to its steam supply, by a valve, without interfering with the steam supply and valve for any other set.

Referring to the drawings,the steam boiler is in the present instance of the vertical type, and comprises water tubes 10 in which the water is heated by the products of combustion passing along the same within one half 11 of the boiler setting 12 which is separated from the other half 13 thereof by a partition or battle wall 14. The setting 12 is of the usual hollow cylindrical shell construction, and is provided with sets of horizontally alined blower-openings 15, 16 formed in the respective flue-containing halves of the setting, and adapted to be closed by suitable plates 15, 16.

In the preferred form thereof shown, my improved blower comprises a vertical main steam-supply pipe 20 connected with the steam dome 10 of the boiler and pivotally supporting branch pipes 21, 22 extending toward the opposite sides of the boiler so that they may be swung in an arc horizontally around the axis of the pipe 20. The outer ends of these pipes are provided with short nipples 23, 24 which in turn pivotally support leaders 25, 26, extending across the sides of the boiler setting and adapted to swing toward and away from the same. The leader 25 has a valve 27 to control the passage of steam for a series of jet tubes 29, each of which is mounted for horizontal swinging movement around a riser 31 in communication with the leader 25. At its other end each tube 29 opens into a jet or distributing head H (see Figs. 4 and 5) which consists substantially of a chambered casing, the wall of which is perforated to form jetopenings j, y" so disposed as to blow steam over a considerable length of the vertical boiler-tubes 10. Each of the jet-tubes 29 has a rearwardly-extending arm 33, the ends of these arms being connected by a link 35 which is provided with a handle 87 whereby the entire set of jettubes may be swung horizontally around the risers 31 within the limits of the openings 16, three of which being shown on the right hand side of the boiler. Similar blowing devices are adapted to be applied to the left side of the boiler setting which has its pairs of blower apertures 15 adapted to receive the distributing heads H carried on the ends of jet tubes 30 which may be swung horizontally on risers 28 by a handled link 36 provided with a handle 38.

Usually the boiler settings are provided with a plurality of superposed blower-apertures so that the tubes may be cleaned for their entire length, and it is to be understood that my improved blowers may be applied to any of said openings as may be deemed desirable or necessary.

By virtue of the articulation of the several components of the blower, it is evident that the several blower-heads may be readily inserted or withdrawn through their respective apertures, that the steam jets will blow off the surface of the boiler tubes within range for a considerable distance of their lengths, and that the effect of the blowers may be directed to different boiler-tubes within the horizontal sweep of the jet-heads.

Many changes may be made in the particular construction and organization of the several parts of the blower system, especially in the manner of uniting the movable pipes, without departing from the spirit of the invention.

I claim:

1. A blower for boilers comprising a steam supply-pipe, a leader pivotally connected thereto, a jet tube pivoted on the leader to swing transversely of the boiler tubes, and a head on said jet tube having perforations disposed in a plane parallel to the boiler tu es.

Copies of this patent may be obtained for five cents each, by addressing the 2. A blower for boilers comprising a steam supply-pipe, a leader pivotally connected thereto, a jet tube pivoted on the leader to swing transverselyof the boiler tubes, a head on said jet tube having perforations disposed in a plane parallel to the boiler tubes, and means for controlling the passage of steam through the leader.

3. Ablower forboilers comprising a steam supply-pipe, a leader pivotally connected thereto, a series of jet tubes pivoted on the leader to swing transversely of the boiler tubes, a head on each jet tube having perforations disposed in a plane parallel to the boiler tubes, and means for swinging said tubes simultaneously.

4:. Ablower for boilers comprising a steam supply pipe, a branch pivoted thereto, a leader pivoted on the branch pipe to swing transversely of the boiler-tubes, a jet tube pivoted on the leader, and means for swinging said jet tube.

5. The combination with the setting of a vertical boiler having apertures at opposite sides, of a blower therefor comprising a stationary vertical steam-supply pipe, branches extending horizontally to' opposite sides thereof, leaders pivoted for horizontal swing on said branches, and jet tubes pivoted for horizontal swing on said leaders.

In testimony whereof I afiix my signature inpresence of two witnesses.

HARRY A. HIGGINS.

Witnesses:

FRANK E. ERNsT, ANNA G. RAVJLER.

Commissioner of Patents,

Washington, D. G. 

